12-letter words containing a, s, p, o
- anisotropism — the state of being anisotropic
- anteposition — the position opposite a given part of a plant
- anthocarpous — resembling or pertaining to an anthocarp
- anthophagous — That feeds on flowers.
- anthophilous — (esp of insects) frequenting flowers
- anti-strophe — the part of an ancient Greek choral ode answering a previous strophe, sung by the chorus when returning from left to right.
- antigropelos — waterproof leggings used to protect against mud
- antinepotism — opposed to or acting against nepotism
- antipetalous — standing before the petals of a plant
- antipolitics — the rejection of party and electoral politics
- antique shop — a shop where antiques are sold
- antisepalous — facing the sepals or calyx leaf
- antistrophes — Plural form of antistrophe.
- antistrophic — Of or pertaining to an antistrophe.
- antistrophon — an argument that is retorted against an opponent
- aphoristical — Alternative form of aphoristic.
- aphrodisiacs — Plural form of aphrodisiac.
- apocalyptist — the writer of the Apocalypse or a related work
- apocynaceous — of, relating to, or belonging to the Apocynaceae, a family of mostly tropical flowering plants with latex in their stems, including the dogbane, periwinkle, oleander, and some lianas
- apostatizing — Present participle of apostatize.
- apostle bird — a gregarious grey-and-brown Australian nest-building bird, Struthidea cinerea
- apostolicity — the quality of being apostolic
- apostrophise — to address by apostrophe.
- apostrophize — to address an apostrophe to
- apothecaries — Plural form of apothecary.
- apotheosized — Simple past tense and past participle of apotheosize.
- appassionato — (to be performed) in an impassioned manner
- appellations — Plural form of appellation.
- apple-polish — to curry favor with someone, especially in an obsequious or flattering manner.
- applications — Plural form of application.
- appointments — Plural form of appointment.
- appositeness — The state of being apposite.
- appositional — the act of placing together or bringing into proximity; juxtaposition.
- appreciators — to be grateful or thankful for: They appreciated his thoughtfulness.
- apprehension — Apprehension is a feeling of fear that something bad may happen.
- appressorium — a flattened hypha of a parasitic fungus that penetrates the host tissues
- approbations — approval; commendation.
- appropriates — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approximates — near or approaching a certain state, condition, goal, or standard.
- apron string — a string for tying an apron on
- araneomorphs — Plural form of araneomorph.
- arch support — a rigid support placed inside a shoe so that its molded form fits the arch of the foot and relieves strain on the muscles of the foot while walking, standing, etc.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archesporium — archespore.
- archipelagos — Plural form of archipelago.
- arctophilist — a collector of teddy bears
- aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
- aristophanic — 448?–385? b.c, Athenian comic dramatist.
- arseno group — the bivalent group −As=As−.
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS